Iowa · population 7,440
Lead pipes in Knoxville, IA
49 lead or galvanized lines to replace
Most of Knoxville (population 7,440) gets its water from Knoxville Water Works. That system reported 47 lead and 2 galvanized-requiring-replacement service lines out of 3,509, with 339 more of unknown material.
1.4% of Knoxville Water Works's service lines are lead or galvanized requiring replacement, lower than the Iowa average (5.6%) and lower than the national average (3.1%).
- Lead 1.3%
- Galvanized (replace) <0.1%
- Unknown 9.7%
- Non-lead 89%
Latest lead test for Knoxville Water Works (Jan 2023–Dec 2025): 7.8 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for Knoxville Water Works.
Water systems serving Knoxville
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Knoxville Water WorksMain system | 47 | 2 | 339 | 1.4% |
| Marion Co. Rural Water DistrictAlso serves parts of the city | 1 | 0 | 0 | <0.1% |
| Southshore HeightsAlso serves parts of the city | 0 | 0 | 5 | 0% |
Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.
Check your address in Knoxville
The counts above cover the whole water system. To see whether your line is lead, look up your address on Knoxville Water Works's official inventory. Utilities had to make these public by October 16, 2024.
No map yet? Do the 2-minute scratch and magnet test.
Protect your drinking water
If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
- Melcher-Dallas1 unknown
- Pleasantville8 lead + galv. lines
- Pella362 lead + galv. lines
- Monroe2 lead + galv. lines
- Chariton27 lead + galv. lines
- Oskaloosa65 lead + galv. lines
- Carlisle11 unknown
- Indianola9 lead + galv. lines
Check another water system
Questions
Does Knoxville, IA have lead pipes?
Yes. Knoxville Water Works, which serves Knoxville, reported 47 lead and 2 galvanized-requiring-replacement service lines, plus 339 of unknown material.
Who supplies water to Knoxville?
EPA's service area maps place most of Knoxville in Knoxville Water Works's service area (PWSID IA6342036). Marion Co. Rural Water District, Southshore Heights also serve parts of the city or nearby areas.
How do I check whether my Knoxville home has a lead service line?
Search your address on Knoxville Water Works's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.
When will lead pipes in Knoxville be replaced?
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Knoxville Water Works whether your street is scheduled and whether it covers the private side.